This is a 25 year old American Light Whiskey. Light Whiskey was introduced in America in the 1970s to sway vodka drinkers into drinking the brown stuff. Distilled to a higher proof than Bourbon and aged in used casks (rather than Bourbon's new charred oak casks), it never really caught on back then, but as it turns out, Light Whiskey is really damn good when aged for a long time, like this is. Instead of the tannic oak bomb you'd get after 25 years in new charred oak, what's left is a much more subtle and deeply complex whiskey.